Diurnal variations of acoustic-gravity waves in the F-region

Details Diurnal variations of acoustic-gravity waves in the F-region Diurnal variations of acoustic-gravity waves in the F-region

Dec 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jatp...37.1593k&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 37, Dec. 1975, p. 1593-1597.

Computer Science

Sound

1

Diurnal Variations, F Region, Gravity Waves, Phase Velocity, Traveling Ionospheric Disturbances, Amplitudes, Atmospheric Models, Sound Waves, Thermosphere, Transfer Functions, Wave Reflection

Scientific paper

This paper investigates the diurnal variations of the horizontal phase trace velocities and amplitudes of F-region acoustic-gravity waves. Using the Jacchia atmospheric model, thermospheric winds and the F-region electron density profiles are calculated. The results are then used to obtain the propagation and attenuation of waves with periods of 36 min and 108 min. Waves of a given period show an attenuation minimum at a certain horizontal phase velocity. Assuming that those waves having the lowest attenuation predominate, the diurnal variations of the horizontal phase velocities and amplitudes are obtained. Good agreement is found with observational results.

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